Mcp Firewall vs Scopeblind Gateway

In-depth architectural comparison of the Mcp Firewall and Scopeblind Gateway MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Mcp Firewall when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Intercepts and filters inbound JSON-RPC tool calls, Enforces YAML-defined allow/deny/redact policies, Detects secret leakage using regex and entropy checks.

Explore Mcp Firewall Details

Choose Scopeblind Gateway when:

• You need dedicated capabilities in the Security domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• You have access to required keys: INTERNAL_API_KEY.
• Primary tools included: Per-tool policy enforcement (block, rate limit, min tier), Shadow mode logs all tool calls without blocking, Enforce mode applies policies to tool calls.

Feature & Specification Comparison

Specification	Mcp Firewall behrensd Security	Scopeblind Gateway tomjwxf Security
Summary	Deterministic security proxy (iptables for MCP) that intercepts tool calls, enforces YAML policies, scans for secret leakage, and logs everything. No AI, no cloud.	Security gateway that wraps any MCP server with per-tool policies, approval gates, and optional Ed25519-signed receipts. Shadow mode logs every tool call; enforce mode blocks, rate-limits, or requires approval.
Category & Scope	Security

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "behrensd-mcp-firewall": {
      "command": "npx",
      "args": [
        "-y",
        "behrensd-mcp-firewall"
      ]
    }
  }
}

{
  "mcpServers": {
    "tomjwxf-scopeblind-gateway": {
      "command": "npx",
      "args": [
        "-y",
        "tomjwxf-scopeblind-gateway"
      ],
      "env": {
        "INTERNAL_API_KEY": "YOUR_INTERNAL_API_KEY_HERE"
      }
    }
  }
}

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